While the true contents of this guide are invisible to the showrunners and to the viewers, it is not invisible to the current System AI. There is nothing about owning this book, or the information hidden within that is against the rules. However, if the organization running this season begins to suspect that this book is more than it appears, or if you tell anyone about the existence of this book, the information within will erase, and you will forever lose access to the hidden text.
